Hi Imogen Jersey is a fantastic place for kids and adults alike - St Brelade's Bay is perfect for children - safe water, sandy beach and palm trees! St Ouen is where you get the best surf and the buses are fantastically cheap and regular for sightseeing the island. I would recommend St Brelade's as your base but also think about camping too - my boys love it and you're nearly always guaranteed fab camping weather. Another tip is to call the camp site or hotel directly because they have arrangements with flights and the Condor Ferries whereby it's cheaper if they book on your behalf. Hope this helps and have a great time - check out the zoo!